2004 BMW M3 CONVERTIBLE inflation pressure

119
Do not drive on a deflated – flat –
tire. A flat tire greatly impairs
steering and braking response, and can
lead to complete loss of control over
the vehicle.
Avoid overloading the vehicle so that
the permitted load on the tires is not
exceeded. Overloading can lead to
overheating and internal tire damage.
This can result in a sudden loss of tire
inflation pressure.
Unusual vibrations encountered during
normal vehicle operation can indicate
tire failure or some other vehicle defect.
This type of problem can be caused by
contact with curbs, etc. This is also true
for irregularities in the vehicle's han-
dling characteristics, such as a pro-
nounced tendency to pull to the left or
right. Should this occur, respond by
immediately reducing your speed. Pro-
ceed carefully to the nearest BMW cen-
ter or professional tire center, or have
the vehicle towed in to have it, its
wheels or its tires inspected.
Tire damage, up to and including blow-
outs, can endanger the lives of both the
vehicle occupants and other road
users.<
Tire replacementTo maintain good handling characteris-
tics, only use a full set of tires of the
same brand and tread configuration.
Comply with the specified tire inflation
pressures, and be sure to have the
wheel and tire assembly balanced
every time you change a tire or wheel.DOT quality grades>Treadwear
>Traction AA A B C
>Temperature A B C
All passenger car tires must con-
form to Federal Safety Require-
ments in addition to these grades. rating based on the wear rate of the tire
when tested under controlled condi-
tions on a specified government test
course.
For example, a tire graded 150 would
wear one and one-half – 1
1/2 – times as
well on the government course as a tire
graded 100. The relative performance
of tires depends upon the actual condi-
tions of their use, however, and may
depart significantly from the norm due
to variations in driving habits, service
practices and differences in road char-
acteristics and climate.TractionThe traction grades, from highest to
lowest, are AA, A, B and C.
Those grades represent the tire's ability
to stop on wet pavement as measured
under controlled conditions on speci-
fied government test surfaces of
asphalt and concrete. A tire marked C
may have poor traction performance.
The traction grade assigned to
this tire is based on straight-
ahead braking traction tests, and does
not include acceleration, cornering,
hydroplaning, or peak traction charac-
teristics. highest – B and C, representing the
tire's resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled condi-
tions on a specified indoor laboratory
test wheel.
Tire condition
OverviewControlsMaintenanceRepairsDataIndex

120
Sustained high temperature can cause
the material of the tire to degenerate
and reduce tire life, and excessive tem-
perature can lead to sudden tire failure.
The grade C corresponds to a level of
performance which all passenger car
tires must meet under the Federal
Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels
of performance on the laboratory test
wheel than the minimum required by
law.
The temperature grade for this tire
is established for a tire that is
properly inflated and not overloaded.
Excessive speed, under-inflation, or
excessive loading, either separately or
in combination, can cause heat buildup
and possible tire failure. applicable on the tire sidewall between
tread shoulder and maximum section
width. For example:
Treadwear 200 Traction AA
Temperature A
Tire ageThe date on which the tire was manu-
factured is indicated by the code on the
sidewall:
DOT ... 3603 indicates that the tire was
manufactured in week 36 of the year
2003.
BMW recommends the replacement of
all tires when the tires are no more than
6 years old, even if a tire life of 10 years
is possible.Following wheel/tire changesComply with the specified tire inflation
pressures, and be sure to have the
wheel and tire assembly balanced
every time you change a tire or wheel.
Following wheel and/or tire changes
you will need to reinitialize both the
sequential M gearbox with Drivelogic
and the Flat Tire Monitor, refer to
pages 74, 88.
Tire replacement

122
Winter tiresChoosing the right tireBMW recommends the use of winter
tires for operation under winter road
conditions. While all-season tires – with
M+S designation – provide better winter
traction than the corresponding sum-
mer tires, they generally do not achieve
the performance of winter tires.
In the interest of safe tracking and
steering response, install radial tires
made by the same manufacturer and
with the same tread configuration on all
four wheels if you elect to mount winter
tires.
When mounting winter wheels,
observe the different recesses of
the front and rear wheels, as otherwise
damage may result.<
Do not exceed specified
maximum speeds
Never exceed the maximum
speed for which the winter tires
are rated.
Unprofessional attempts by laymen to
service tires can lead to damage and
accidents.
Have this work performed by skilled
professionals only. Your BMW center
will be glad to assist you with both their
expertise and the proper equipment for
your vehicle.<
Tire condition, tire pressureAt tread depths below approx. 3/16 in /
4 mm, tire performance under winter
driving conditions deteriorates notice-
ably. Worn tires should therefore be
replaced for safety considerations.
Comply with the specified tire inflation
pressures, and be sure to have the
wheel and tire assembly balanced
every time you change a tire or wheel.
Snow chains*Only certain snow chains have been
tested by BMW and determined and
approved as roadworthy. Consult your
BMW center for more information.
BMW recommends using only these
approved fine-link snow chains. Use
them in pairs on winter tires, but only on
both rear wheels.
Comply with all manufacturer's safety
precautions when mounting the chains.
Do not exceed a speed of 30 mph /
50 km/h with snow chains.
After mounting or removing snow
chains, always reinitialize the sequential
M gearbox with Drivelogic, refer to
page 88.
It is not possible to mount snow
chains on tires with 18- and 19-
inch wheels.
Deactivate the Flat Tire Monitor when
using snow chains. Malfunction warn-
ings and undetected losses in pressure
are a possibility when driving with snow
chains.
For additional information, refer to
page 87.<

143
4. Make sure that the screw on the rear
of the pressure gauge 3 is tightened
down. Turn on the M Mobility sys-
tem, position I, refer to illustration,
and allow minutes to elapse, to let
the sealant flow in. It does not matter
afterward, what the tire's inflation
pressure is
5. Turn the system off.
Disconnect the connector hose from
the sealant container and the wheel
valve. Stow the M Mobility system in
the luggage compartment.Distributing the sealantRight afterward, drive at least
1 1/4 miles / 2 km, so that the liquid
sealant distributes evenly throughout
the inside of the tire.
Do not exceed a maximum speed
of 40 mph / 60 km/h. If possible,
keep the vehicle speed above 10 mph /
20 km/h.
Stop in a suitable spot.<
Inflating tire to correct pressure1. Take out the hose with the pressure
gauge and screw it onto the valve.
Take the plug out and plug it into the
cigarette lighter socket in the pas-
senger compartment
2. Reset the air pressure to
29 psi/200 kilopascal, and:
>Increase tire pressure: switch on
the M Mobility System, position I.
Switch off the unit briefly to check
the current tire pressure
>Decrease tire pressure: turn the
screw on the back of the manome-
ter, a valve located there will open
Repairing a flat tire
OverviewControlsMaintenanceRepairsDataIndex

Everything from A to ZA
ABS Antilock Brake
System 114
indicator lamp 19
Accessories, refer to For
your own safety 5
Accident, refer to Emer-
gency call 146
Activated-charcoal filter 100
Adding brake fluid 129
Adding liquid sealant
Mobility system 142
Additional sources of infor-
mation 4
Air conditioning mode
automatic climate
control 98
Air distribution
automatic climate
control 98
Air distribution, individual 98
Air outlets, refer to Ventila-
tion 96
Air pressure, refer to Tire
inflation pressure 25, 118
Air recirculation, refer to
Recirculated-air mode 99
Air supply
automatic climate
control 98
Air, drying, refer to Air con-
ditioning mode 98Airbags 55
deactivating 55
indicator lamp 18, 57
sitting safely 46
Airing out, refer to Ventila-
tion 96
AKI, refer to Fuel specifica-
tions 25
All-season tires, refer to
Winter tires 122
Alternative oils 127
Antifreeze
coolant 128
washer fluid 126
Antilock Brake System
(ABS) 114
indicator lamp 19
Anti-theft system 30
Approved axle loads, refer
to Weights 156
Approved gross weight,
refer to Weights 156
Armrest 101
Artificial leather, refer to the
Caring for your vehicle
brochure
Ashtray
front 103
rear 103
Assistant systems, refer to
Dynamic Stability Control
(DSC) 86AUC Automatic recircu-
lated-air control 99
AUTO program, refer
to Automatic air distribu-
tion 98
Automatic
air distribution 98
air supply 98
cruise control 77
headlamp control 91
Automatic car wash, refer to
the Caring for your vehicle
brochure
Automatic climate control 96
Automatic curb monitor 52
Automatic dimming, interior
rearview mirror 54
Automatic recirculated-air
control (AUC) 99
Automatic windshield
washer, refer to Rain sen-
sor 76
Average fuel
consumption 84
Average speed 84
Axle loads, refer to
Weights 156
B
Backrest
unlocking 49Backrest, refer to Seat
adjustment 47
Backup lamps 69
bulb replacement 139
Bandages, refer to First-aid
kit 23
Bar, towing 149
Battery 144
charge 144
disposal 144
indicator lamp 18
jump-starting 147
remote control 30, 31
Battery charge current 18
Battery charge indicator
lamp 18
Belts, refer to Safety
belts 50
Beverage holders 102
Blower
automatic climate
control 98
BMW Maintenance
System 130
BMW sports seat 47
Bore, refer to Engine
data 154
Bottle holders, see Bever-
age holders 102
Brake fluid 129
indicator lamp 18, 129
level 129

Everything from A to ZGearbox malfunction
sequential M gearbox with
Drivelogic 74
Gearbox, sequential 70
Gearshift lever
manual transmission 69
sequential M gearbox with
Drivelogic 70
General driving notes 113
Glove compartment 101
Gradient assistance 73
Grills, refer to Ventilation 96
Gross weight, refer to
Weights 156
H
Handbrake, refer to Parking
brake 68
Hands-free system 102
Hardtop 115
Hardtop preparation 115
Hardtop, refer to the sepa-
rate Owner's Manual 115
Hazard warning flashers 14
Hazard warning triangle 23
Head restraints 48
Headlamp cleaning system
cleaning headlamps 77
washer fluid 126, 157
Headlamp control, auto-
matic 91Headlamp flasher 92
indicator lamp 21
Headlamps
bulb replacement 137
care, refer to the Caring
for your vehicle brochure
Heated mirrors 53
Heated rear window
automatic climate
control 99
Heated seats 52
Heating
exterior mirrors 53
rear window 99
seats 52
Heating and ventilation 96
Heavy loads, refer to Cargo
loading 107
Height adjustment
seats 47
steering wheel 53
Height, refer to
Dimensions 155
High beams 75, 92
bulb replacement 137
headlamp flasher 92
indicator lamp 21
Holder for beverages 102
Hood release 123
Horn 14
Hydraulic brake assistant,
refer to DBC 114Hydraulic system
brakes 114
Hydroplaning 113
I
Ice warning 83
Ignition 65
Ignition key 30
positions 65
Ignition lock 65
Imprint 4
Indicator lamps 18
Indicator/warning lamp
airbags 18
brakes 18, 19
Check Gas Cap 19
convertible top 41
coolant 19, 80
DSC 19
Flat Tire Monitor
18, 19, 89
fog lamps 20
Please fasten safety
belts 18
reserve 80
rollover protection
system 19
Service Engine Soon 19
Individual air distribution 98
Individual settings, refer to
Vehicle Memory, Key
Memory 64Inflation pressure monitor-
ing, refer to Flat Tire Moni-
tor 87
Inflation pressure, tires
25, 118
INSPECTION 81
Instrument cluster 16
Instrument lighting 92
Instrument panel 14
Interface socket for onboard
diagnostics (OBD) 132
Interior lamps 93
remote control 32
Interior rearview mirror
automatic dimming
feature 54
Interior temperature
adjusting 98
Intermittent
mode, wipers 76
Interval
display, service 81
J
Jump-starting 147
K
Key Memory 64
Keys 30
with remote control 30

Everything from A to ZSMG Drivelogic 70
Smokers' package, refer to
Ashtray 103
Snow chains 122
SOS, refer to Emergency
call 146
Spare key 30
Special oils 127
Special oils, refer to Speci-
fied engine oils 127
Specified engine oils 127
Specified oils 127
Speed
winter tires 122
Speed gauge, refer to
Speedometer 16
Speedometer 16
Sport mode 90
Sports seat 47
Stability control, refer to
Dynamic Stability Control
(DSC) 86
Standing lamps 92
bulb replacement 137
Starting difficulties
jump-starting 147
temperature 66
Starting help DSC 86
Starting the engine 66
Starting, refer to Starting the
engine 66Status of the Owner's Man-
ual 5
Steering wheel lock 65
Steering wheel, adjusting 53
Storage compartments 101
Storage nets 101
Storing seat positions,
refer to Seat and mirror
memory 51
Storing tires 121
Stroke, refer to Engine
data 154
Surface ice, refer to Ice
warning 83
Switches, refer to
Cockpit 14
Switching off
engine 68
vehicle 68
Symbols 4
T
Tachometer 79
Tail lamps
bulb replacement 139
Tail lamps, refer to Rear
lamps 139
Tank capacity, refer to Fuel
tank capacity 157
Tank indicator, refer to Fuel
gauge 80
Technical data 154Technical modifications 5
Technical modifications,
refer to For your own
safety 5
Telephone hookup 102
Telephone, refer to the sep-
arate Owner's Manual
Television, refer to the
Owner's Manual for
Onboard Computer
Temperature
automatic climate
control 98
Temperature adjustment 98
Temperature display
engine coolant 80
ice warning 83
outside temperature 83
setting units 83
Temperature layering 99
Tempomat, refer to Cruise
control 77
Thigh support area, adjust-
ing 47
Third brake lamp, refer to
Center high-mount brake
lamp 140
Three-point safety belt 50
Tilting passenger-side exte-
rior mirror 52
Time 82Tire pressure monitoring,
refer to Flat Tire
Monitor 87
Tire replacement 119
Tires
age 120
breaking in 112
condition 118, 122
damage 118
flat 140
inflation pressure 25, 118
replacing 119
size, refer to Wheel and
tire combinations 121
storing 121
tread 118
treadwear indicator,
refer to Tire tread – tire
damage 118
winter tires 122
Tools, refer to Onboard tool
kit 136
Torque
engine 154
Tow sockets for towing eye-
let 149
Towing bar 149
Towing eyelet 149
Towing rope 149
Towing the vehicle 149
Track width, refer to Dimen-
sions 155

Refueling
To ensure that you always have conve-
nient access to all essential information
when you stop for fuel, we recommend
that you take the time to fill out the
adjoining chart by entering the data that
apply to your vehicle. Consult the index
for individual specifications.
FuelPlease enter your preferred fuel here.Engine oilThe oil quantity between the two marks
on the dipstick is approx.
1.4 US quarts/1.3 liters.Tire inflation pressureDesignation
Quality
Summer tires Winter tires
front rear front rear
Up to 2 persons
4 persons plus luggage